转炉钢渣磁选提铁研究  

Study of Recovering Iron from Steel Slag by Magnetic Separation

作　　者：李星[1] 冯海东[1] 徐磊[1] 崔玉元[1] 王德永[1] 刘承军[1] 姜茂发[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《工业加热》2011年第6期40-42,共3页Industrial Heating

基　　金：中央高校基本科研业务费项目(100402016);全国大学生科技创新计划项目(100133)

摘　　要：采用企业转炉钢渣进行了磨矿-磁选实验,探讨了钢渣磨矿粒度与时间的关系,在给定磨矿粒度下分别进行了弱磁和强磁磁选实验,探讨了磁选得到的精矿品位和铁回收率等问题。研究结果表明:转炉钢渣硬度大,难磨,弱磁磁选得到的铁精矿品位与原渣铁相比大幅度提高,转炉渣原渣磁选后的铁精矿品位为84.05%,可作为炼钢原料回收利用。强磁磁选得到的精矿产率和铁回收率明显提高,转炉渣原渣弱、强磁精矿总产率和铁回收率分别为71.94%和81.55%,实现了钢渣中回收铁的目标。Steel slag from some steel mill was used to prepared the milling-magnetic separation experiments. Firstly, the relationships of slag size and milling time was discussed, then the magnetic separation experiments was carried out to study the recovery rate of iron and concentrate grade under a certain slag size by milling process. The results shows that steel slag is very hard. After low magnetic separation, the concentrate grade increases obviously than the original slag, even the concentrate grade achieves to 84.05%, which can be recycled to the process of steel-making. After the high magnetic separation, the yield of concentrate and recovery rate of iron improves remarkably, achieves to 71.94% and 81.55% respectively, those realized the aim of iron recovery from steel slag.

关 键 词：转炉 钢渣 磁选 提铁 

分 类 号：X757[环境科学与工程—环境工程]